logging in or signing up lines and angles aSGuest51951 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2475 Category: Education License: Some Rights Reserved Like it (1) Dislike it (0) Added: June 30, 2010 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Slide 1: 6/30/2010 1 Lines And Angles Made By- Maitreya Patni 9785796957 Jaipur Index : 6/30/2010 2 Index Important Terms Types Of Angles Important Terms : 6/30/2010 3 Important Terms Ray- Ray is a part of line that has one endpoint and goes on endlessly in the other direction. Line Segment- A part of line that has two endpoints is known as line segment. Slide 4: 6/30/2010 4 Line- A series of point that go endlessly in both directions is known as a line. Parallel Lines- Two lines that are equal distance apart and will never intersect are known as parallel lines. Slide 5: 6/30/2010 5 Perpendicular Lines- Two lines that intersect to form four right angles are known as perpendicular lines. Slide 6: 6/30/2010 6 Angle- The figure formed when two rays share the same endpoints. Vertex- The point at which two rays join together to form an angle is known as vertex. Types Of Angles : 6/30/2010 7 Types Of Angles Obtuse Angle- An angle that measures more then 90° is known as obtuse angle. Slide 8: 6/30/2010 8 Acute Angle- An angle that measures less then 90° is known as acute angle. Right Angle- An angle that measures 90° is known as right angle. Slide 9: 6/30/2010 9 Straight Angle- An angle that measures 180° is known as straight angle. Reflex Angle- An angle that is greater then 180° is known as reflex angle. More Angles : 6/30/2010 10 More Angles Adjacent Angles- Adjacent angles are angles which have a common side and a common vertex but no interior points in common. Slide 11: 6/30/2010 11 Vertically Opposite Angles- Vertically Opposite Angles are the angles opposite to each other when two lines cross. Slide 12: 6/30/2010 12 Corresponding Angles- When two lines are crossed by another line the angles in matching corners are called corresponding angles. x y Slide 13: 6/30/2010 13 Alternate Interior Angles- When two lines are crossed by another line the pairs of angles on opposite sides of the transversal but inside the two lines are called Alternate Interior Angles. a b Slide 14: 6/30/2010 14 Alternate Exterior Angles- When two lines are crossed by another line the pairs of angles on opposite sides of the transversal but outside the two lines are called Alternate Exterior Angles. c d Slide 15: 6/30/2010 15 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.